Here’s how a large fancy color rough stone cracked during polishing, with a huge loss to the owner
In this article FCRF continues to raise awareness about issues that are generally hidden from the professional public. In a unique achievement, FCRF was able to get hold of a fully documented case in which the polishing of a high value stone went terribly wrong, with photos that illustrate each stage. This is an exceptional opportunity to illustrate the risks that manufacturers face and the possible gloomy outcome.
The beautiful 16.56 carat hexagon rough was bought In July 2016 at a diamond auction conducted by a Russian diamond producer. The stone had a very strong yellow saturation and was expected to yield a 9.5 carat vivid yellow cushion cut in a VS clarity grade.
The 16.56 Vivid Yellow Rough
Before beginning the polishing process, the stone was checked thoroughly for any internal tension it might have. The findings showed
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